The definitions that determine the contents of the Board menu are found in boards.txt in the hardware/ sub-directory of the Arduino application directory. The definitions for the Burn Bootloader menu are in the programmers.txt file in the same directory. To create a new board or programmer definition, copy an existing one, change the prefix used in the preference keys (e.g. "diecimila." or "avrisp."), and alter the values to fit your hardware.

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The definitions that determine the contents of the Board menu are found in boards.txt in the hardware/ sub-directory of the Arduino application directory. The definitions for the Burn Bootloader menu are in the programmers.txt file in the same directory. To create a new board or programmer definition, copy an existing one, change the prefix used in the preference keys (e.g. "diecimila." or "avrisp."), and alter the values to fit your hardware. Note that only certain board configurations are supported, see the other hardware page for details.

Some preferences can be controlled from the Preferences dialog within the Arduino IDE. Access it from the File menu in Windows or Linux, or the Arduino menu on the Mac.

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Some preferences can be controlled from the Preferences dialog within the Arduino environment. Access it from the File menu in Windows or Linux, or the Arduino menu on the Mac.

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The definitions that determine the contents of the Board menu are found in boards.txt in the hardware/ sub-directory of the Arduino application directory. The definitions for the Burn Bootloader menu are in the programmers.txt file in the same directory. To create a new board or programmer definition, copy an existing one, change the prefix used in the preference keys (e.g. "diecimila." or "avrisp."), and alter the values to fit your hardware.